1. A block of aluminum occupies a volume of 15.0 mL and
weighs 40.5 g. What is its
density?

Which property of fossils allow scientists to determine the relative rock ages..

The membrane surrounding a living cell consists of an inner and an outer wall that are separated by a small space. assume that the membrane acts like a parallel plate capacitor in which the effective charge density on the inner and outer walls has a magnitude of 7.0 × 10-6 c/m2. (a) what is the magnitude of the electric field within the cell membrane? (b) find the magnitude of the electric force that would be exerted on a potassium ion (k+; charge = +e) placed inside the membrane.

What organization and environment is described above?